Antioxidant and radioprotective properties of commercially grown litchi (Litchi chinensis) from India

作者：Saxena Sudhanshu; Hajare Sachin N; More Varsha; Kumar Sanjeev; Wadhawan Surbhi; Mishra B B; Parte Madan Narayan; Gautam Satyendra; Sharma Arun^*

来源：Food Chemistry, 2011, 126(1): 39-45.

DOI：10.1016/j.foodchem.2010.10.051

• Litchi chinensis
• Antioxidant
• Radioprotection
• Cell survival
• Phenolics

In an earlier study, radiation treatment (0.5 kGy) and low temperature (4 degrees C) storage were found to extend the shelf life of litchi fruit var. 'Shahi' and 'China' from India up to 28 days, while maintaining its physical, biochemical and organoleptic properties. The current study was aimed to elucidate the antioxidant and radioprotective properties of the litchi fruit, and the effect of radiation processing on these properties. The litchi fruit was found to be significantly rich in antioxidant and radioprotective properties, and the antioxidant parameters were found to be well correlated with the phenolic and flavonoid contents. A significant protection to pBR322 plasmid DNA and Escherichia coli cells from radiation induced damage was observed in the presence of litchi juice. Plasmid DNA was well protected even at the dose of 5 kGy, whereas, bacterial cells could be protected up to 0.5 kGy. Neither of these properties was found to be sensitive to radiation processing or low temperature storage.

• 出版日期2011-5-1